The U.S. is not the only country debating the future of biofuel compliance credits, which are known as Renewable Identification Numbers (RINs) there. Biofuel policy opponents recently proposed that a cap be placed on the price of RINs traded in the secondary market. Meanwhile, biofuel advocates have proposed ways to expand its use in order to boost the supply of RINs. Both plans have been characterized as a way to make RINs more affordable and thus reduce their impact on the economics of supplying fuel. RINs are the implicit subsidy under the Renewable Fuel Standard (RFS). In Brazil, however, a bill that just passed the legislature and is on President Temer’s desk doubles down on the RIN-style structure and places it squarely in the...